Scientifically designed for patients with venous ulcers, the Sigvaris Ulcer X Kit offers several benefits over and above traditional bandages. Easy to don, these stockings are more comfortable even when worn with shoes. Ulcer X has two components – the overstocking and the special patented understocking. The understocking make nights more comfortable by applying low pressure and keeping the wound dressing in place. In combination, these components provide quicker healing and better comfort.